I've thought some more about your feedback, since other replies gave the same feedback. At the same time, I didn't want to remove the "mostly useless" information since clearly it was useful for a lot of people! The submission was on the front page of HN (often in the #3 or #4 spot) for 12 hours and last I checked generated more than 300,000 requests from 36,000 unique IP's (on an ordinary 2-day period there are around 1,600 unique IP's) and people downloaded 600 GB of models, including 8.5k downloads initiated for the first model (3,000 of which were completed and 5.5k of which did not wait for it to complete, since download was a little slow due to the high number of concurrent users.)

So, clearly, the presentation format resonated with a lot of people. Therefore, I kept the presentation but put a tl;dr in enormous can't-miss-it shimmering font at the top. I marked all the "dense information" you mentioned as "Optional reading" (it's a lab after all, there should be a reading for it) and increased the font size.

I removed the parts of the footer that you said didn't make sense. The page isn't on the front page anymore so I don't know if people would like the changes or not, but I've changed the page layout in response to your feedback.